diff --git a/xvidcap-1.1.7/configure.in b/xvidcap-1.1.7/configure.in
index 04311a1..caadc99 100644
--- a/xvidcap-1.1.7/configure.in
+++ b/xvidcap-1.1.7/configure.in
@@ -424,7 +424,7 @@ fi
 # with audio detection in shared library libavformat
 if ( test x${ac_cv_lib_avcodec_avcodec_encode_video} = xyes ) ; then
 	test x`(uname -s)` = xSunOS && ac_my_avcodec_libs="-lnsl -lsocket"
-	AC_CHECK_LIB_STATIC(avcodec, avcodec_decode_audio,[ac_my_have_ffmpeg_audio="1"],[unset ac_cv_lib_avcodec_avcodec_decode_audio ; AC_CHECK_LIB(avcodec, avcodec_decode_audio,[ac_my_have_ffmpeg_audio="1"],[ac_my_have_ffmpeg_audio="0"],[$ac_my_avcodec_libs])],[$ac_my_avcodec_libs])
+	AC_CHECK_LIB_STATIC(avcodec, avcodec_decode_audio2,[ac_my_have_ffmpeg_audio="1"],[unset ac_cv_lib_avcodec_avcodec_decode_audio2 ; AC_CHECK_LIB(avcodec, avcodec_decode_audio2,[ac_my_have_ffmpeg_audio="1"],[ac_my_have_ffmpeg_audio="0"],[$ac_my_avcodec_libs])],[$ac_my_avcodec_libs])
 fi
 
 ################################################################